Cable-hauling engine.



l U. BUTTER.

CABLE HAULING ENGINE.

APPLICATION HLBD sEPT.5,1908.

955,283. y Patented Apr.19,191o.

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0.y POTTER.

CABLE HAULING ENGINE.

AIPLIGATION FILED $139135, 1908.'

Patented Apr. 19, 1910.

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O. POTTER.

AGBLE HAULING ENGINE.

APPLIOAIoN FILED SEPT. 5, 1902;!

955,283, Patented. Apllg, 1910.

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ORLIN POTTER, 0F PORTLAND, OREGON.

CABLE-HAULING ENGINE.

To all 'whom it may concern:

Be it known that I, ORLIN POTTER, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Gregon, have invented a new and useful Improvement in Cable-Hauling Engines, of which the following is a specification.

This invent-ion relates to that class of engines commonly called donkeys,7 and used in logging camps, mines, etc., for hauling a cable to and fro and thereby moving cars or other loads; and my invention has for its object to combine with engines of the type referred to, simple means whereby the hauling of the load is placed under more eilicient control than heretofore, so as to render the hauling operation as nearly absolutely safe as possible.

I attain my object by providing the cables of the engine drum with a groove-faced periphery, and combining therewith auxiliary drums, also groove-faced, and cooperating devices, whereby the cable is prevented from slipping, and the hauling operation is made both safe and convenient, all as hereinafter more fully explained.

In the drawings, Figure l shows a partial side elevation of a donkey engine embodying my invention. Fig. 2 is a partial plan or a top view, agreeing with the preceding figure; Fig. 3 is a corresponding right-end view of my engine; Fig. 4 is a diagrammatic illustration of my invention as applied in practice for the hauling of a car over a pole-road; Fig. 5 is a diagrammatic illustration showing lmy engine as mounted from a platform car, and the hauling cable arranged to run the car back and forth between two points; Fig. 6 is a sectional detail of the steam tightener-device, combined with my engine and adapted to be thrown into service as the occasion presents itself; Fig. 7 is a diagrammatic illustration showing the cable wound around the groove-faced auxiliary drum of an engine, installed as shown for example in Fig. 4; and Fig. 8 is a diagrammatic illustration showing the cable wind as arranged in my engine when placed on a flat car, and to be operated as illustrated in Fig. 5.

llChe characters designate the parts referred to.

I deem it convenient to build all my engines after the same type or pattern illustrated in Figs. l, 2, and 3, whether the same is to be used in practice, asillustrated in Specification of Letters Patent.

Application filed September 5, 1908. Serial No. 451,890..T

Patented Apr. 19, 1910.

.,f: .ez/ the diagrammatic view Fig. 4, or in Fig. 5. The supporting frame a, may be made of any suitable material. On it are mounted cylinders l), in which operate pistons c, the crossheads of which slide in guideways d, as usual. Some of the parts referred to have been omitted from Fig. 2 for the sake of brevity and clearness; and some of the well known devices of the engine are omitted in all views. At one end of the frame are mounted pillow blocks c, onwhich is journaled a shaft f, on which is mounted a driven drum g, the peripheral face of which is provided with a series of grooves g, which as shown in Fig. 2, comprise 7 in number. On the far side of the drum g, as shown in Fig. 2, is mounted a gear wheel 7L, meshing with a pinion z', fastened on a shaft j, journaled in bearings 7c. The gear wheel it, is bolted to the drum g, as both are rigid on their common shaft f. The space intermediate the groove'periphery of the drum g, and the gear-wheel 7L, is provided to apply a strap-brake (not shown) of the common type. The connecting rods of the pistons are coupled to the wrist pins of the crank disks Z, as usual. In front of the drum g, there is journaled on the frame o, an auxiliary drum m, also provided on its periphery with a series of grooves, corresponding in arrangement with the grooves of the drum g.

As is shown in Fig. 3, the shaft m, of the auxiliary drum m, is alined at an oblique angle from the horizontal, which alinement, as apparent, is required to properly lead the cable-end between the main and the auxiliary drums. In front of the auxiliary drum fm, is provided a fair-leader a, alined with the lower face of the main or driven drum g, and there is further provided a second fair-leader o, located above the top of the drum g, as convenient to properly lead the return end of the hauling cable which is led toward the upper end of the drum g. The fair-leaders a, 0, are of usual construction. The upper fair-leader 0, is not shown in Fig. 2. To the rearward of the main drum g, is provided a groove-faced pulley 29', the shaft 29, of which is also alined at an oblique angle, for the same purpose as described concerning the shaft m, of the auxiliary drum m. The periphery of the groove-faced pulley p, is provided with two grooves. The purpose of lthe groove-faced pulley p, is to enable one to so arrange the as shown hauling cable that one end thereof will run rearward from the main drum g, and pull from the lower face of said main drum g. Rearward of the groove-faced pulley j), I provide a fair-leader g. To prevent the slipping of the cable wound around the drums from any cause, I have provided a tightener mounted on an extension of the frame a, and braced by rods as shown in Fig. 1. rlhe construction and operation of said tightener 1', is readily seen by having reference to the enlarged sectional detail thereof, shown in Fig. G.

It and r represent two cylinders in which are pistons r2, the outer ends of the rods 713 of which pistons are connected to a yokelike bearing t, in which is journaled a groove-faced drum u. The grooves of the atter correspond with those of the auxiliary drum. Both cylinders of the tightener r, are connected with the boiler of the engine, and their respective steam pipes are provided with suitable valves o, so as to enable the control of the admission of steam into either cylinder. The tightener is so mounted as to position the grooves in the drum u, in correspondence with those of the drums; that is to say, so that all the cable strands lying in the grooves of the auxiliary drum m, will be provided with corresponding grooves in the drum of the tightener It. Since, obviously, the strain on the hauling cable will always come on one or the other end of the groove-faced drum, the circumstances being controlled by the direction in which the engine is operating, it is also necessary to so arrange the tightener as to enable the same to be applied on that particular section or end of the hauling cable which for the time being is receiving the greatest strain. To this end, I have so contrived my tightener that either one of the pistons r2, may be moved forward and thus permit either end of the tightener drinn to be brought to bear upon a particular end strands of the cable wind. The air entering on the under side of the pistons r2, escapes through ducts r4.

Each of the pipes conducting the steam to the posts at the upper ends of the cylinders r, 7", is provided with a valve o. The valve o, is arranged to enable its adjustment to admit steam into the cylinders 7", 1", and also to permit the admitted steam to escape at o, into the air, when the tightener is to be released. The pistons r2, are moved back to their normal position, by the reilex of the cable-strands against which the tightener has been thrown.

The arrangement of the winding cable around the drums of course depends upon the mode in which my engine is to be used. Supposing the use of my engine to be as diagrammatically illustrated in Fig. 4, the cable would be led rst around the under side of the main drum g, thence around and over the latter and over the top of the auxiliary drum m, thence around the under side of the latter and back around the main drum g, a number of times, as designated by the numbers 1 to 7; and finally the cable end '7, would be led over the fair-leader toward the object with which that cable end is to be connected. rlhe first described arrangement of the cable is illustrated in Fig. T. If however, my engine is to be used in practice as illustrated diagrammatically in Fig. 5,then the winding of the cable must be arranged as illustrated in Fig. 8; that is to say, the cable-end 1, is passed around the under side of the main drum g, thence up and around the same, over the top and around the auxiliary drum m; thence around the two drums on lines 2, 3, da; thence on line 5b, and across the under side of the main drum g, to the groove-faced pulley p, thence across the under face of and around the last mentioned pulley, back on line five to the upper face of the main drum g; thence around the drum g, and pulley j), on line 6b; and thence rearward across the under face of the main drum and the pulley on line 7b, to the point where attached. The purpose of the cable arrangement illustrated on Fig. 7 is to bring both ends of the cable in position to start to wind on and oif the under face of the main drum g.

In the diagrammatic view, Fig. et, 12 represents my engine, 13, 13a, the two ends of the hauling cable; 14 and 15 are guide pulley-blocks; 1G is a pole track, and 1T is a car to which the ends of the cable are` attached; S is a cable, provided with a pulley 9, over which the cable end 13 runs. The far end of the cable S runs over a pulley 10 secured to a post 11, and from said end is suspended a weight w, by which arrangement the cableend 13 is kept taut. The last mentioned features are illustrated in Fig. ta.

The diagrammatic view Fig. 5 represents my engine 20, as mounted on the fiat car 2l, and the opposite ends of the cable 22, and 22a, are fastened to posts 23 and 2a; the latter representing distant objective points between which the car 21, is caused to travel by operating my engine 20, and the cable ends being arranged as diagrammatically illustrated in Fig. 8. The outlines 18 and 19 represent the boiler and steam pipe connection therefrom to the valve o.

The parts not specifically described are understood to be of common construction, and arrangement.

My invention is especially suitable for hauling on a steep guide.

I claim:

1. The combination in a hauling engine of, a groove-faced main or driven drum, a corresponding groove-faced auxiliary drum journaled in front of one face of said driven drum, fairleaders arranged relatively to the front face of said driven drum and said auxiliary druin7 a tightener operated by the driving motive-force and consisting of a rookable bearing, a grooved drum journaled therein and positioned relatively to the cable-strands running between the drivendruin and its auxiliary drum, and connections whereby the motive force may be applied to cause either end of said tightener drum to bear upon said cable strands.

2. The combination in a hauling engine of, a groove-faced main or driven drum7 a corresponding groove-faced auxiliary drum journaled in front of one face of said driven drum, fairleaders arranged relatively to the front face of said driven druin and said auxiliary druni, a groove-faced pulley journaled in front of the rear or opposite face of said driven druin, a fairleader arranged relatively to said groove-faced pulley, a tightener operated by the driving ino-` tive force and consisting of rockable bearing, a grooved drum journaled therein and positioned relatively to the cable-strands running between the driven-drum and its auxiliary drinn, and connections whereby the motive-force 1nay be applied to cause either end of said tightener drum to bear upon said cable strands.

3. The combination in a hauling engine of a groove-faced inain or driven drinn, a corresponding groove-faced auxiliary druni journaled on a relative oblique axis in front of one face of said driven drinn7 fairleaders arranged relatively to the front face of said driven-drum and said auxiliary drum,

a groove-faced pulley journaled on a relative oblique axis in front of the rear or opposite face of said driven drum, a fairleader arranged relatively to said groovefaced pulley, a tightener operated by the driven motive-force, consisting of a rockable bearing, a groove-faced drum journaled therein and positioned relatively to the cable-strands running between the drivendruin and its auxiliary druln, and connections whereby the motive-force inay be applied to cause either end of said tightener drum to bear upon said cable strands.

4. In a hauling engine, the combination of a grooved faced inain or driven druln, a grooved faced auxiliary drum journaled in front of one face of said driven druin, a grooved faced pulley journaled in front of the opposite face of said driven druin, said auxiliary drinn and said pulley being idlers, and a cable arranged to pass under the auxiliary drum to the under face of the driven drinn, thence having several lapses around the driven and auxiliary drums, the last lapse being around the driven druin only, and thence passing from the under face of the latter to the grooved faced pulley, thence having several lapses around said pulley and said driven drinn, and lin'ally passing from the under side of the driven drum, substantially as described, wherebyy both ends of the cable are positioned to wind on and off the under face of the driven druin.

ORLIN POTTER.

W'itnesses:

ROSE M. WEINs'rEIN, T. J. GEISLER. 

